A liquid thermometer works by using the thermal expansion of a liquid within a capillary tube to measure temperature. The precision of this method varies by the liquid used, but all use the fact that when most liquids ar... More »

A maximum-minimum thermometer works by registering the maximum and minimum temperatures over a certain time period by using two scales set in liquid mercury. Two bulbs filled with alcohol or oil regulate the movement of ... More »

The liquid in a glass thermometer, either colored alcohol or mercury, expands as it heats and condenses as it cools. In a thermometer, the liquid cannot expand outward and the only place it can go is up or down. Temperat... More »

A love thermometer refers to a toy known as a hand boiler, which uses a combination of temperature and pressure in an enclosed glass tube to appear as if the liquid boils just by placing hands on one of the ends of the d... More »

www.reference.com Hobbies & Games Toys

A capillary tube uses a liquid’s properties of cohesion, adhesion and surface tension to draw the liquid up the interior walls of a narrow tube. This allows a liquid, such as blood or water, to climb up the tube even aga... More »

To read a thermometer, keep the thermometer in a vertical position so the liquid in the tube is upright. Keep eyes level with the top of the liquid in the tube. Avoid over-handling the thermometer as heat from another ob... More »

www.reference.com Science Measurements

Generally speaking, thermostats work by using a mercury switch that is in contact with a thermometer wire to trigger a temperature-adjustment lever in response to the expansion or contraction of the wires as they are hea... More »